how push new repo to existing remote git repo code example

Example 1: git push new repo to remote

$ git remote add origin <remote repository URL>
# Sets the new remote

# Push the changes in your local repository to GitHub.
$ git push -u origin master
# Pushes the changes in your local repository up to the remote repository you specified as the origin

Example 2: git push existing clone

git config --global user.name "user_id"
git config --global user.email "[email protected]"

Create a new repository

git clone https://gitlab.com/abc.git
cd folder
touch README.md
git add README.md
git commit -m "add README"
git push -u origin master

Push an existing folder

cd existing_folder
git init
git remote add origin https://gitlab.com/abc.git
git add .
git commit -m "Initial commit"
git push -u origin master

Push an existing Git repository

cd existing_repo
git remote rename origin old-origin
git remote add origin https://gitlab.com/abc.git
git push -u origin --all
git push -u origin --tags